Spacetime diamonds

We show that the particle-number distribution of diamond modes, modes that are localized in a finite spacetime region, are thermal for the Minkowski vacuum state of a massless scalar field, an analogue to the Unruh effect. The temperature of the diamond is inversely proportional to its size. An iner...

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Bibliographic Details
Published in:Physical review. D 2016-02, Vol.93 (4), Article 044023
Main Authors: Su, Daiqin, Ralph, T. C.
Format: Article
Language:English
Subjects:
Correlation
Cosmology
Coupling
Diamonds
Gravitation
Mathematical analysis
Scalars
Thermal radiation
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Summary:We show that the particle-number distribution of diamond modes, modes that are localized in a finite spacetime region, are thermal for the Minkowski vacuum state of a massless scalar field, an analogue to the Unruh effect. The temperature of the diamond is inversely proportional to its size. An inertial observer can detect this thermal radiation by coupling to the diamond modes using an appropriate energy-scaled detector. We further investigate the correlations between various diamonds and find that entanglement between adjacent diamonds dominates.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.93.044023